The sales of LCD TVs on the market now account for the majority, and most of the friends buy LCD TVs. However, some of the considerations for the use of LCD TVs may not be well understood by most friends. If these problems are not noticed, they may affect the service life of TV products and cause unnecessary waste of funds. This article refers to the address: http:// Today, we will introduce our friends to some of the details that we usually overlook. First of all, we must first understand the working principle of LCD TV, from the principle of understanding, in order to cure the symptoms and cure the problem. How LCD TVs work: When the LCD TV adopts the backlight principle, the lamp is used as the backlight source, and the auxiliary optical module and the liquid crystal layer control the light to achieve an ideal display effect. Liquid crystal is a regularly arranged organic compound, which is a substance between solid and liquid. Currently, a nematic fine column type liquid crystal in which a molecular arrangement is most suitable for manufacturing a liquid crystal display is generally used. The liquid crystal itself does not emit light, and it mainly displays an image by causing a change in alignment of liquid crystal molecules due to an electric field generated by a change in voltage. LCD material: The liquid crystal panel is mainly composed of two sodium-free glasses sandwiching a sandwich layer composed of a polarizing plate, a liquid crystal layer and a color filter. The surface of the LCD screen looks like a solid black screen. In fact, the manufacturer adds a special coating to the screen. The main function of this special coating is to prevent the user from being reflected and glare by other light sources during use, and to enhance the color contrast effect of the liquid crystal screen itself. However, because the coating materials used by various manufacturers are not the same, of course, its durability will be different. Therefore, the user should not wipe the screen surface with any alkaline solution or chemical solution when cleaning. Understand some of the above conceptual principles of LCD screens, I believe we can understand and deepen our maintenance awareness when we look at the following knowledge about LCD maintenance. 1) Method for correctly removing dirt on the surface of LCD TV screen The LCD screen is the core part of the LCD TV, and it is naturally the focus of our cleaning. The LCD display surface is covered with glass. If dirt is found on the surface of the LCD display, the dirt should be removed using the correct method. The smudges of the liquid crystal panel are roughly classified into two types, one is dust in the air stuck by the accumulated time, and the other is the fingerprint and oil stain left by the user inadvertently. If you want to remove the dirt on the LCD screen, use a soft, non-fibrous material such as absorbent cotton, lens paper or soft cloth, and then gently wipe it off with a little glass cleaner. Otherwise, the screen will be short-circuited and damaged. It is forbidden to use chemical solutions such as alcohol. Do not use a hard towel to scrub the surface of the screen, so as not to rub the surface of the screen to affect the display, or use rough cloth or paper items. Because such materials are prone to scratches. It is important to remind everyone that the cleaning agent should not be sprayed directly onto the surface of the screen. It can easily flow into the screen and cause short-circuit faults inside the LCD screen, causing unnecessary losses. It is also wrong to clean the screen regularly, and frequent scrubbing is also wrong, which will also have some adverse effects on the TV screen. 2) Eliminate some bad habits When you are not watching TV, please turn off the LCD screen (not limited to the remote control's off state) to prevent dust from accumulating; do not use your fingertips (often pointing your finger at the screen) or sharp objects on the LCD surface. So as not to scratch the surface. 3) Keep the environment dry and away from some chemicals Do not place the LCD TV in a damp place. If moisture has entered the LCD TV, it must be placed in a warm place to allow the moisture to evaporate. Nowadays, the LCD screens are coated with a special coating on the screen to make the screen have a better display effect. The usual hair spray, alcohol, and mosquitoes frequently used in the summer are sprayed onto the screen, which will dissolve the layer. Special coatings cause damage to liquid crystal molecules and even the entire screen, resulting in a shortened life span of the entire TV, thus avoiding contact with moisture and chemicals. 4) Safety Tip: Do not open the fuselage without authorization LCD TV is the new favorite of recent home appliances, not only looks good, but also has a much longer life than ordinary TV. However, LCD TVs can only be used for long-term trouble-free operation if they are well maintained. But we can't clean it for cleaning. Never disassemble the LCD TV. Because even after a long period of shutdown, the CFL inverter in the backlight assembly may still have a high voltage of about 1000V, which can cause severe personal injury. So never attempt to disassemble or change the LCD display to avoid high voltages. Rugged Barcode Scanner,Rugged Barcode,Rugged Scanner,Rugged Handheld Scanner Guangzhou Winson Information Technology Co., Ltd. , https://www.barcodescanner-2d.com